Rigging coupling-link.



T. GHIGRIS.

RIGGING COUPLING LINK.

APPLIGATION FILED MAR. 13, 1914.

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Specification of Letters I'atent. j latejited Ail 25, 19

Application filed March 13, 1914. Serial No. 824,578.

To all whom it may concern: e g Be it known that I, THOMAS GrIIenIs, a subject of the King of Greece, residing at Knappa, in the county of Clatsop and State of Oregon, have invented certain new and useful Improvements in Rigging Coupl1ng- Links,of which the following 1s a specification. e

My invention relates'to rigging couplinglinks, and has for its object to provide a coupling device for the rigging in logging operations and in those operations where a main line cable is drawn by means of a donkey engine.

A further principal object is to provide a simple economical and efiicient means for connectingthe main line with the haul back and with the butt chain which is adapted for attachment to the load to be hauled.

I accomplish the objects indicated by means of the structure shown in the accompanying drawing, in which Figure l is a side elevation of my coupling link, showing the manner of connecting the working llnes. Fig. 2 is an edge view of the link showing the open side and the means by which it is closed, also the attaching element for the haul back line. Fig. 3 is a similar view, showing a slight modification.

Describing the drawing in detail, 1 desig nates the body of an oblong ring or link, similar to the links of a log-chain, which may be made of any convenient size commensurate with the character of work to beperformed. This link is divided at the median point in one of its longer sides, with the terminal portions 1 and 1 overlapping each other. These end portions are separated from each otherlaterally so as to form a split ring or. link adapted to allow the cables 10 and 11 to be. placed use of other fastening means, and without the need of inserting the cables endwise.

i In suitable apertures in the end-portions l and 1 is secured the bolt 8, which serves to prevent the link from opening under the strain of operations. Upon the bolt 8 is pivotally secured the swivel 5, by means of the apertures 3 in the arms 4, and it may be secured in place by riveting thereon, orby nut, as may be found most ring-t into which is secured the hauLback line 12.

Intermediate the end-portions 1 and 1 is secured a dividing bar 2 by means of an aperture at the end thereof, permitting it to be engaged over the bolt 8, the opposite end of the bar being seated in the recess 1 formed in the opposite side of the body of the link 1.

By means of the structure thus described, the bolt 8 and the bar 2 may be removed when the main line may be dropped through the opening into one end of the link, and the butt-chain may be similarly positioned in the opposite end. After tlns the bar 2 will be set in place and the arms l of the swivel 5 will be placed with the apertures therein in register with those of terminals 1 and 1", so that upon inserting the bolt 8 the members will be securely held together, the opening of the link will thereby be closed, and the lines will be free to act in any direction with reference to each other;

and the bar 2 will prevent the main line and bolt 13 and is adapted to receive through an aperture in itsouter end, the bolt 8, thereby acting as a stay, between which and the terminal 1", the other terminal 1 of the link will stand. .NVhen the members are disengaged this stay 9 is free to swing on its pivot, as indicated at 9, thereby leaving the opening free to permit the passage of the cables. 1

The structure thus described, possesses many advantages over the usual rigging plate, among which are its economy of structure and its convenience in operation.

What I claim as new, is-- 1. A rigging coupling link comprising a 1 split ring whose ends are positioned in spaced relation, and are provided with reglstering apertures, a transverse bolt unitingsaid end portions, and a swivel connecting element Divot-ally mounted upon said bolt intermediate said end portions.

2. A rigging coupling-link comprising a split ring, a transverse bolt uniting the end portions thereof, a, swivel connecting element pivotally secured upon said bolt, and a detachable bar for preventing intercommunication between the end-portions of the and a stay for supporting said transverse link. ,bolt. 10

3. A rigging coupling-link comprising a In testimony whereof I aflix my signasplit ring, a transverse bolt uniting the end ture in the presence of two witnesses. 5 portions thereof, a swivel connecting ele- THOMASCHIGRIS.

ment pivotally secured upon said bolt, a de- Witnesses: tachable bar for preventlng intercommuni DAN FAHEY, cation between the end-portions of the link, F. E. BROOKS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner 0! Patents, Washington, D. G. V 

